Crank up fontification efforts for

• LaTeX fragments
• Org entities
• Org quote and verse blocks.

(with-eval-after-load 'org
  (setopt org-fontify-quote-and-verse-blocks t
          org-highlight-latex-and-related '(native entities)))

Note. org-highlight-latex-and-related does not include script, as it caused

nondeterministic fontification issues

with verbatim, code, or links containing underscores.